diff --git a/.gitignore b/.gitignore
index 2a52c95e0c9b15..35dd5a667ec62e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,37 +1,37 @@
-*.dll
-*.exe
-*.cmd
-*.pdb
-*.suo
-*.js
-*.user
-*.cache
-*.cs
-*.sln
-*.csproj
-*.txt
-*.map
-*.swp
-.DS_Store
-npm-debug.log
-
-_Resharper.DefinitelyTyped
-bin
-obj
-Properties
-
-# VIM backup files
-*~
-
-# test folder
-_infrastructure/tests/build
-
-.idea
-*.iml
-*.js.map
-!*.js/
-
-node_modules
-
-.sublimets
-.settings/launch.json
+*.dll
+*.exe
+*.cmd
+*.pdb
+*.suo
+*.js
+*.user
+*.cache
+*.cs
+*.sln
+*.csproj
+*.txt
+*.map
+*.swp
+.DS_Store
+npm-debug.log
+
+_Resharper.DefinitelyTyped
+bin
+obj
+Properties
+
+# VIM backup files
+*~
+
+# test folder
+_infrastructure/tests/build
+
+.idea
+*.iml
+*.js.map
+!*.js/
+
+node_modules
+
+.sublimets
+.settings/launch.json
diff --git a/adm-zip/adm-zip-tests.ts b/adm-zip/adm-zip-tests.ts
index 93f8f2f2d7f2cd..92be315161af57 100644
--- a/adm-zip/adm-zip-tests.ts
+++ b/adm-zip/adm-zip-tests.ts
@@ -18,6 +18,9 @@ zip.extractEntryTo(/*entry name*/"some_folder/my_file.txt", /*target path*/"/hom
 // extracts everything
 zip.extractAllTo(/*target path*/"/home/me/zipcontent/", /*overwrite*/true);
 
+// extracts everything and calls callback -> async extracction
+zip.extractAllToAsync(/*target path*/"/home/me/zipcontent/", /*overwrite*/true, (error: Error)=> {});
+
 
 // creating archives
 var zip = new AdmZip();
diff --git a/adm-zip/adm-zip.d.ts b/adm-zip/adm-zip.d.ts
index 208c13b27b821e..eb0b045062ca02 100644
--- a/adm-zip/adm-zip.d.ts
+++ b/adm-zip/adm-zip.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for adm-zip v0.4.4
 // Project: https://github.com/cthackers/adm-zip
-// Definitions by: John Vilk <https://github.com/jvilk>
+// Definitions by: John Vilk <https://github.com/jvilk>, Abner Oliveira <https://github.com/abner>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 /// <reference path="../node/node.d.ts" />
@@ -211,6 +211,16 @@ declare module "adm-zip" {
          *   will be overwriten if this is true. Default is FALSE
          */
         extractAllTo(targetPath: string, overwrite?: boolean): void;
+        
+        /**
+         * Extracts the entire archive to the given location
+         * @param targetPath Target location
+         * @param overwrite If the file already exists at the target path, the file
+         *   will be overwriten if this is true. Default is FALSE
+         * @param callback The callback function will be called afeter extraction 
+         */
+        extractAllToAsync(targetPath: string, overwrite: boolean, callback: (error: Error) => void): void;
+        
         /**
          * Writes the newly created zip file to disk at the specified location or
          * if a zip was opened and no ``targetFileName`` is provided, it will